Mandrel for box-making machines



July 4, 1933. B. A. E. JOHNSON 1,917,126

MANDREL FOR BOX MAKING MACHINES Filed July 11, 1951 BYE- ,in the rotary motion of the n'andr'el, during e i 'e j or SWED N;

v Bofiesesioecjially the Outer casings boxes, and similar articles generally arefmanw ufactured by Winding round a mandrel a blank, generallya veneer strip, provided'with connecting the veneer to'the mandrel-g the. latthe mandre'l thronghout the mandrel in an veneer is inserted. The-provision o'f-a; 'slot of the said characteriinvolves any technical advantages that will hereafter be referred to."

" ln-the-ja'ccompanying dra. ing.3'1: I

' Figllrel shows diagrammatically necessary tolf e v togetherwith the paper strip is Wound; The

said mandrel, which may be carriedby a shaft 2 androtated ingthe directioniindi-fl cated by vthe arrow is bevelled transversely [at one of its narrowgsides'f and at this Is i deva r, tongue 3triangular in-cross' section is;r ig idly. ,fi XQd'tO themandrel 1 atsomesdistance. from? the same. "The saidrtongue extends;-1ong'i-,,v

tudinally o f the mandrel and completes the ,wcornerfof the same, outfitay. Tongue 3c is i fixed tothejnlandrel only at its inner end and,,. M e constitutes" a slot extending through L'the' J: r jWholefma'ndrel". i

' scores Where. the strip. isito lie-folded, and by J Winding a paper-strip provided with; ;p aste round the said Veneer I for keeping the same -i together. aAccording to' this J invention for ter is" provided with arigidlyfi xedtonguer which extends along the mandrel at 'a; suitable distance therefroniiso-that thereffis-a 1 slot'betweenuthe"mandrel and the tongue; h which slot extends from one"ofthe cornersfof,

15 oblique direction and in -'Wh'iel 1 -thestrip'of I asm' c'h-f ofa machlne for Inanufacturmg o'uter cas The Veneer strip 4 is fed from a vmagazine j 5 bya'slider;6,*so"thatthefore endof. the 1 strip ispushedinto the slot'between the man- ,dreI and the tongue.- During therotation of the mandrel anangular turn" in*the"yeneer is eifeoted between the end inserted-lintoflthel said slot and the subsequent part j ofth'e' te Wh teho se it y 'bef'fbr cq iagaiiistith jfmandrel in" "known iflnanner by a "smoothin r {roller (not shown") z .1Amongtheadvantagesgainedbycthe proey' vision of a slot extendingfthrough the-Whole 5 mandrel a'sdescribed abo v e,i the "following may beiinentioned, fjIf forsome.reaQsonfthe-r;

veneerinsertedinto theslot should be broken 1 pmthe:partofthe-s'trip remaininginthe-sbt 7 lwill 'b'e rem'oved'from the same by the, I'stri p 60 I .vpvh'ic'h isfsnbsequently inserted into the"slot-,P 1 r a for which reason no clogging stoppin -u voilf thefl sl'otmay befefi'ected' which otherwise} 3 ould-cause, anslinterruptio n,of the opera- I tionl Eurther, dnst deposited in the slot by 65 the Veneers and-also paste,which-isveryoften, 1, 1 transferredf from the' connecting paper to the veneer strip, will notbeable- .to'choke'- 1;; thefslotbecause thef deposition isflremo' ed j, v 5' ,jat the; open endjfofithe slot -.b:y the yeneeri IstfipsfQWhile pushed into the-islet, For the 1 said 'reasonsfth s1oewi11 nev'er be "clos 'ed', so- "atrins'efrting of thetene'er's is prevented.

. 1 e' mandrel ifor box n1aking" achinesrcom- L prisi g afrotatablefiloody twinge corner-Tout I.

aWay;,-a' :tongue segillid at the", ciit'l' away 1 co r "ner offthe bodyandfgilispose din.spaced rela "tion't'o; the latterito{provideya "slot-extending in i'the direetionfof the axis, of rotation of the so u ""body and openflat-bothsides ofthe' latter ,Qfor receiving and'holding a' boxblanklf f f L In testimony whereof I have hereunto f;

fixedmysig'natur'e, P1"

.-; neer, the said turn""b i g i e h a f transverse score provided; yeneerg In thls manner the veneer1s'cau'sed' to partake 

